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/shared/HelperBaseCh5.java /shared/HelperBaseCh5.java

package shared;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hibernate.validator.ClassValidator;
import org.hibernate.validator.InvalidValue;

public abstract class HelperBaseCh5 extends HelperBaseCh4 {

public HelperBaseCh5(HttpServletRequest request,
            HttpServletResponse response) {
        super(request, response);
    }
    //For JSP access, use a map that is created from
    //the validation messages.
    java.util.Map<String, String> errorMap =
            new java.util.HashMap<String, String>();

public void setErrors(Object data) {
        //Hibernate fills the array with validation messages
        InvalidValue[] validationMessages;
        ClassValidator requestValidator =
                new ClassValidator(data.getClass());
        validationMessages =
                requestValidator.getInvalidValues(data);
        //copy the messages to a map
        errorMap.clear();
        if (validationMessages.length != 0) {
            for (InvalidValue msg : validationMessages) {
                errorMap.put(msg.getPropertyName(),
                        msg.getMessage());
            }
        }
    }

public boolean isValid(Object data) {
        setErrors(data);
        return errorMap.isEmpty();
    }

public java.util.Map getErrors() {
        return errorMap;
    }

public boolean isValidProperty(String name) {
        String msg = errorMap.get(name);
        return msg == null || msg.equals("");
    }
}

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